track README.md rename in spec file and debian/docs

When README was renamed to README.md, the debian and rpm packaging
information was not updated.

Change-Id: I3fb3016defb74cf4e9c0a363f70eff9d6f71a5f5
diff --git a/debian/docs b/debian/docs
index 50bd824..8913f46 100644
--- a/debian/docs
+++ b/debian/docs
@@ -1,2 +1,2 @@
 NEWS
-README
+README.md
diff --git a/openggsn.spec.in b/openggsn.spec.in
index 3ee319e..f15866e 100644
--- a/openggsn.spec.in
+++ b/openggsn.spec.in
@@ -63,7 +63,7 @@
 %dir /var/lib/ggsn
 /var/lib/ggsn/gsn_restart
 
-%doc AUTHORS COPYING INSTALL NEWS README 
+%doc AUTHORS COPYING INSTALL NEWS README.md
 %doc examples/ggsn.conf
 %doc examples/sgsnemu.conf
 %doc examples/ggsn.init